<div id="app">
    <b-navbar toggleable type="inverse" variant="inverse">

        <b-navbar-toggle target="nav_collapse_1"></b-navbar-toggle>

        <a class="navbar-brand" href="/">
            <span>Bootstrap</span>
        </a>

        <b-collapse is-nav id="nav_collapse_1">
            <b-navbar-nav>
                <b-nav-item>Support</b-nav-item>
                <b-nav-item>Docs</b-nav-item>
                <b-nav-item>Contact Us</b-nav-item>
            </b-navbar-nav>
            <b-navbar-nav class="ml-auto">
                <b-nav-item-dropdown text="Lang" right>
                    <a href class="dropdown-item active">
                        EN
                    </a>
                    <a href class="dropdown-item">
                        ES
                    </a>
                </b-nav-item-dropdown>
                <b-nav-item-dropdown right>
                    <template slot="text">
                        <span style="font-weight: bold;">User</span>
                    </template>
                    <a href class="dropdown-item">
                        Profile
                    </a>
                    <a href class="dropdown-item">
                        Sign out
                    </a>
                </b-nav-item-dropdown>
                 <b-nav-item-dropdown ref="extraToggleClasses" extra-toggle-classes="nav-link-custom">
                    <b-dropdown-item>CustomClassInNavLink</b-dropdown-item>
                </b-nav-item-dropdown>
            </b-navbar-nav>
        </b-collapse>

    </b-navbar>

</div>
